Air-circulating device.



L. GREENB ERG & G. OLSON. AIR CIRCULATING DEVICE. APPLICATION FILED SEPT.19, 1913.

Patented Janf19, 1915.

2 SHEET$-SHBBT 1.

L, GREENBLRG & G. OLSON.

AIR CIROULATING DEVICE. APPLICATION FILED SEPT.19.1913.

Patented Jan. 19, 1915.

2 SHBETS SHEET 2' "I her.

UNITED s ATES T N Q LOUIS GREENBERG Am) GUSTAF onsoiv, oFcHIcAs'o, ILLINOIS, nssIGNoRs or ONE- THIRD fro-WILLA D in}. MCEWEN, OF CHICAGO, rumors.-

un-crncutarme DEVICE,

To all whom it may concern Be it known that'we, Louis GREENBERG eago, county of Cook; and State of Illinois, have invented certain new and useful- Improvements in Air-Circulating Devices,

of which the following is a specification.

The main objects of this invention are to provide an improved form of electric fan adapted ,tohave an oscillatory movement during the operation thereof; to provide improved mechanism for causing said oscilla ins torymovement, and to provide an improved arrangement of said mechanism on' said mg 18 integrally formed on the motor cas- .An} illustrative embodiment of this in; .vention is shown in. the accompanying draw- A ings-in' whieh-v Fi re 1 is aside elevation of a fan; showithecasing being omitted for th p p s of disclosing the said mechanism. Fig.2 is an 3.6 lings the device comprises a supporting memor base 1,'a motor 2 mounted in a casing 3" and connected to rotatea fan 4:. The

motor 2 together withits casing 3 and fan 4, which is hereinafter referred to as the blowermechani'sm is supported on the memher, or basel-bymeans of a shaft 5 rigidly I .seeured'to thecasing 3 and journaled in the member'b so'that the blower mechanism is 'adapted' tobe given a relative rotary move mentwithrespect to said supporting meml The mechanism for oscil1ati ng the blower mechanism-is concentrically arranged about "i thelshaftb: onvth'e under side of the motor "*9 easing 3. A' transverselydisposed annular v --fla ngeor track I6 is supported at the upper ofthe'base'l and-has apertures 7form'ed Ehjrein so as toconstituteqa rack. with which the pinions or star wheels 8 are adapted-to mesh," The pinions 8 are rotatablymounted Specification of Letters Patent.

Application filed September 19,1913. Serial No. 790,632.

e mechanism by means of which it is oscillated,v a portion ofthe lQWQI' part of Patented Jan. 19, 1915.

on a shaft 9 inwardly of the anti-friction rollers 19 which are also loosely journaled thereon 1n position to bear on respectively opposite sides of-the things 6 outwardly of the apertures 7.

The shaft 9 is journaled in a bearing 11 depending from the motor casing 3, and

1 inthevertical shaft 5, which supports the blower mechanism on the supporting member 1. It is positively driven by the motor 2 through the medium of the worms l2 and 13 and the gears 14 and 15. The worm 12 is carried on the shaft 16 of the motor 2' and meshes with the gear 14 carried on a vertically disposed shaft 17 journaled in'a hear;-

mounted onthe'shaft 9 and splined thereto by means of keys or shoulders 20, Fig. 6. The sleeves 19 are provided with shoulders or serrations 21 which are adapted to coact with other shoulders or serrations 22 formed on collars 23 carried by the'pinions 8 for locking the clutches to therespective pinions. The sleeves are connected together by a' rod v24 and forks 25 so as to be simultaneously shifted to connect one of the pinions with the shaft 9 and. disconnect the other.

The rod 24 is shiftably mounted above the shaft 9 and the depending arms or forks .25 are rigidly secured thereto and partially embrace the respective sleeves 19. clutch mechanisms areshifted throughthe The engagement of shoulders 26 carried on the sleeves 19, with the cam or arm 27 attached to the member- 1 and extending upwardly above the plane of the flange Ginwardly thereof. The shoulders or lugs 26 are in- I tegrally formed on the sleeves 19 and spaced apart angularly about 90 degrees. The

faces of the lugs '26 whichcome into contact with the arm 27 are inclined, so as to facilitate the shifting of the sleeves 19. The arm 27 is bentoutwardly so as toform a inclined surface opposing the inclined 1 sur. 'faces'on said lugs 26. The arm 27 'is preferably made of resilient material so that it will yield sli ghtlyas the lugs 26 engage the same. The rod 24 is yieldingly retained in one or the other ofthe pos tions into whichit is shifted by'means' of a pointedrod or detent 30 s'lidably mounted at one side of the rod 24 and normally urged bythe spring 31 to' engage one or the other of the notches 32 formed in said rod.

The gear 14 is loosely mounted on the shaft 17 and has a collar 33 rigidly secured thereto and provided witha notch 31 adapted to receivethe shoulder 35. on the laten 36 pivoted at 37 to the upper end'of the shaft -17. When the, shoulder 35 is in engagement with the notch 34,,the shaft 17 will be caused to-rotate and operate the driving mechanism for oscillating the fan. When the latch 36 is in the position shown in Fig. 1 the driving mechanism will remain inoperative and the blower mechanism may therefore'be operated without being oscillated. I

The driving and clutch mechanisms are all housed within an apron 38 attachedato the motor casing and depending therefrom -so that said mechanismsare protected from injury. The worms and gears connecting the shaft 9 with the motorfl are. also 'protected byfsuitable housings as shown in [drawingss A rheostat (not shown) is secured in the base 1 in' the usual manner which is connected with a source of electricity by means of the conductor 39 and connected by other suitable conductors (not shown) with the motor 2. The rheostat is controlled by a switch arm 40 protruding through theslot 41 formed'inthe base.

-The operation ofthe device shown is as follows: When it is desired to have the fan oscillate, the latch 36 is shifted so as to causethe shoulder to enter the notch 34. The current is turnedon by means of the switch .arm' whereby the motor will. ro-

tate the fan 4 and at the sametime revolve the shaft 9 through the medium of the worms 12 and 13 andthegears 14 and 15.

I Assuming that the shaft 9. is driven in the direction of the arrow 42, Fig. 5, and that the clutches are in the positions'shown in Fig.- 1, the blower mechanism will have a, rotary movement with respect to the base in the direction of the arrow 43 shown in Fig.

3. When the blower mechanism has revolved so that one of the lugs 26 on one of the sleeves 19 engages the arm 27,-the rod 2-1 will be shifted to the left of Fig.3, thereby causing the disengagement of theone clutch and the engagement of the other. This shifting of the clutches will release the forward pinion 8 from engagement with the shaft 9 and cause the engagement ofthe [rear pinion 8 with said shaft, whereupon the said rear pinion 8 operating on the, rack- V 6 will cause the blower mechanism to rotate With respect to the base in the opposite direction. When one of the lugs 26 on the other sleeve-19 engages the arm 27 at the end of said reverse rotary movement 'of the blower mechanism, the rod 24 will be shift ed to the right of Fig. 3 whereupon the cycle of operations is repeated. I

Although but one specific embodiment of i this invention has been herein shown and described, it will be understood that numerous details of the construction shown may be altered or omitted without departing frointhe spirit of this invention as defined by the following claims."

We claim: 1. An air circulating device comprising blower mechanism, a member rotatably suprelative rotation for shifting said clutch mechanisms for oscillating said blower mechanism. I

2. An air circulating device comprising a blower mechanism, a member rotatably supporting said blower mechanism, an annular rack on said member, a pair of pinions carried by said blower mechanism and engaging said rack, at respectively opposite sides and adapted to cause the relative rotation of said blower mechanism and said supporting member, clutch mechanism, and means actuated by the rotation of said blower mechanism on said member and adapted to shift" said clutch mechanism for alternately connecting said pinions with'said blower mechanism, for oscillating the same.

3. An-air circulating device comprising blower mechanism, a member rotatably sup-,

porting said blower mechanism, an" annular rack, a shaft transversely arranged with respect to the axis ofsaid rack, pinions rotatably mounted on said shaft and meshing with said rack at opposite sides thereof, clutch mechanism, and means actuated by .the relative rotation of said blowermecha nism and supporting member and adapted to shift said clutch mechanism for alternately connecting said pinions with. said blower mechanism, for oscillating the same.

4. An air circulating device comprising blower mechanism, a member rotatably'supporting said blower mechanism, an annular rack on said member, a shaft carried by I said blower mechanism and transverselygm ranged to the axis of said raclr, a pairof pinions rotatably mounted on said shaft and meshing with said rack at opposite sides thereof, clutch mechanisms earned by said shaft adjacent to said pinions, and means actuated bv the relative rotation of sa d blower mechanism on said supporting member and adapted to shift said clutch mechanisms for alternately connecting said pinions with said blower mechanism, for oscillating the same.

5. An air "circulating device comprising blower mechanism, a member rotatably sup-' porting said blower mechanism, an. annular rack on said member, a shaft carried by said blower mechanism and transversely ar ranged to the axis of said rack, means ro-' tatably connecting said shaft to said blower mechanism,- a pair of pinions loosely' journaled on said shaft and meshing withsaid rack at respectively opposite sides thereof,

, clutch mechanisms splined on said shaft ad jacent to each of said pinions, means connecting said clutch mechanisms and adapted to cause said clutch mechanisms to shift so as to connect one of said pinions with said shaft and disconnect the other pinion, and coacti'ng shoulders carried by said blower mechanism and said supporting member and adapted, to be actuated by the relativerotation thereof for shifting said clutch mechanisms so as to cause the oscillation of said blower mechanism.

- tatably connecting said shaft to said blower naled on said shaft and meshing with said r 6. An air circulating device comprising" blower mechanism, a member rotatably supporting said blower mechanism, an annular rack on said member, a shaft carried by said blower mechamsm andtransversely arranged to the axis of said rack, means *romechanism, a palr of pinions loosely jourrack at respectively opposite sides thereof, clutch mechanisms splined on said shaft adjac'nt' to each of said pinions, a rod shiftably mounted at one side of said shaft, transversely disposed armson said rod respectively engaging said clutch mechanisms,

' said rod and arms being ,arranged so; as to ftatably connecting said shaft to said blower mechanism, a pair of pinions loosely jour- 'rack at respectively opposite sides thereof,

naled on said shaft and meshing with said clutch mechanisms splinedon said sha ft adjacent to each of said pinions, a rod shiftably mounted at one side of said shaft, transversely disposed arms on sa d rod respectively engaging said clutch mechanisms said rod and arms beingarranged so -as to shift one ofsaid clutch mechan sms to connect with one of the pinions wbenthe other of said clutch mechanisms is disconnected from 1ts respective pinion, lugs on said clutch mechanisms having inclined faces thereon, and an arm arranged on said supporting member and inclined outwardly and adapted to engage said lugs for'shifting said clutch mechanisms.

8. An air circulating device comprising blower mechanism, a member rotatably supporting said blower mechanism, an annular rack on said member, a shaft carried by said blower mechanism and transversely arranged to the axis of said rack, means 1'0- tatably connecting said shaft to said blower mechanism, a pair of pinions loosely journaled on said shaft and meshing with said rack at respectively opposite sides thereof, clutch mechanisms splined on said shaft adjacent to each of said pinions, a rod shiftably mounted at one side of said shaft,

transversely disposed arms on said rod respectively engaging said clutchmechanisms, sa d rod and arms being arranged so as to shift one of said clutch mechanisms to con nect with one of the pinions when the other of said clutch mechanisms is disconnected from its respective pinion, lugs on said clutch mechanisms, an arm arranged on said supporting member and adapted to engage said lugs for shifting said mechanisms, and means adapted to yieldingly hold saidrod in either of its shifted positions.

9. An air circulating device comprising blowermechanism, a member rotatably supporting said blower mechanism, an annular rack on said member, a shaft carried by said blower .mechanism and transversely arranged to the axis of said rack, means rotatably connecting saidshaft to said blower mechanism, 'a pair of pinions loosely journaled on'said shaft and meshing'with said rack at respectively opposite sides thereof, clutch mechanisms splined on said shaft adjacent to each of said pinions, a rod shiftably-mounted at one side of said shaft,-

transversely disposed arms on said'rod respectively engaging said clutch mechanisms, said rod and arms being arranged so as to shift one of said clutch mechanisms to conheat with one of the pinions when the other of said clutch mechanisms is disconnected from its respective pinion, legs on said clutch mechanisms, an arm arranged on said supporting member and adapted to engage said lugs for shifting said clutch mechanisms, said rod having notches formed therein, and a detent shiftably mounted adjacent to said rod and yieldingly urged into engagement with said notches.

10. An air circulating device comprising blower mechanism, a member rotatably supporting said blower mechanism, a transversely disposed annular flange on said supporting member having a rack formed thereon, a shaft carried by said blower mechanism and arranged transversely to the axis of said flange, means rotatably connecting said shaft with said blower mechanism, rollers journaled on said shaft at opposite sides of said flanges and bearing thereon, pinions journaled on said shaft adjacent to said rollers, clutch mechanisms shiftably mounted on said shaft adjacent to each of said pinions, means carried by said blower mechanism and adapted to cause said clutch mechanisms to shift so as to connect one of said pinions with said shaft and disconnect the other, a finger carried by said means, 15 and inclined shoulders on said supporting member adapted to engage said finger for actuating said, shifting means.

Signed at Chicago this 10th day of Sep-. tember, 1913.

LOUIS GREENBERG. GUSTAF OLSON. 

